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As of July 1, Daqing Petrochemical No.
2 Syngas Plant Gasifier Burner has been in continuous operation for 225 days
.
As the second in the world and the first in China to produce synthesis gas with cracked tar as raw material, the long-period operation of the domestically produced burner has created a new record since the start-up of the device
.
Problem study and judgment of burner file
Problem research and judgment burner file establishment Problem research and judgment burner file establishment"We limit the key operating parameters of the burner, such as water-oil ratio, central oxygen ratio, oxygen-carbon ratio, etc.
, to avoid the shortening of the operating life of the burner caused by frequent adjustment of the raw material ratio
.
In order to prolong the service life of the burners, the factory has established a technical research team to conduct physical examinations of spare burners that need to be replaced in terms of burner material, smoothness, and channel unobstructedness
.
During the operation of the burner, the research team put forward countermeasures; after the burner is off the assembly line, it will summarize and analyze the inspection situation of each burner in combination with the operating status, and continue to communicate with the manufacturer to improve the upgrade of the burner material and other aspects.
Transformation
The technical team leader Ma Chunrui led the technicians to continuously optimize the operating parameters, reduce the adjustment of the gasifier load, analyze the data of the burners of the same load and the same manufacturer, and gradually optimize the operating parameters of the burners, and now a relatively mature operation control scheme has been formed.
.
At the same time, they have also established a usage management account for each burner in order to grasp the full cycle operation data of each burner
.
Dosing analysis to control raw materials
Sample addition analysis control raw materials sample addition analysis control raw materialsOn May 23, the pressure difference on the oil side and the pressure difference on the oxygen side of the gasifier both dropped by 0.
02 MPa.
Although the change was small, it caused a high degree of vigilance in the workshop
.
At 2 a.
m.
The gasification furnace of the synthesis gas plant uses cracked tar as the raw material, and the composition is complex.
The coke produced by the combustion will cause different degrees of scars on the end of the burner head and damage the burner
In order to control the raw materials, the workshop technicians and position employees must promptly ask about the analysis data of the laboratory.
If the production fluctuation is encountered, the tar raw material must be sampled and analyzed.
When the analysis data is abnormal, the workshop must report to the production department as soon as possible.
, Through the communication and coordination between the production department and the upstream, adjust the tar viscosity and other parameters to reduce the impact of raw material tar on the long-term operation of the burner
.
Careful and special care
Careful special care to prevent trouble before it happens Carefully special care to prevent trouble before it happensAt 15:30 on June 24th, Liu Yuhang, a technician in the butanol gas production workshop, climbed up to the 24-meter high platform of the synthesis gas device under the scorching sun to check the temperature of the gasifier furnace mouth.
Despite the double "baking test", he saw everything After he was normal, he felt refreshed
.
With the continuous extension of the gasifier's continuous operation time, in order to ensure the long-term operation of the device and maximize the benefits, the plant implements special care management for the gasifier
.
In view of the temperature of the outer wall of the gasifier, the flange of the burner, the flow pressure of the process water pump and other key parameters and key parts, the continuous monitoring is implemented to add another insurance for the smooth operation of the gasifier burner
.
On April 17, the third shift chief operator He Chunlong discovered fluctuations in the gasifier process water flow while monitoring the pan.
He immediately reported the situation and conducted a comprehensive inspection and confirmation of other parameters of the gasifier
.
After on-site inspection, the pump was operating normally, and the parameters such as flow and pressure were stable.
He Chunlong contacted the instrument to check the process water flow meter
The factory has also continuously strengthened the quality and frequency of staff inspections, and will promptly follow the special protection operation plan of the gasifier for the abnormal operation of the process water pump, the vibration of the oxygen compressor, and the increase in the temperature of the gasifier wall during the inspection.
Adjust to avoid potential safety hazards such as over-oxygen in the gasifier
.
"The burners are currently operating in good condition and are expected to break the 250-day world record
.
" Guo Liguo, chief of the production section of the plant, said confidently
.